TW201218048A - Method for detecting touch status of surface of input device and input device thereof - Google Patents

Method for detecting touch status of surface of input device and input device thereof Download PDF

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Publication number
TW201218048A
TW201218048A TW100101349A TW100101349A TW201218048A TW 201218048 A TW201218048 A TW 201218048A TW 100101349 A TW100101349 A TW 100101349A TW 100101349 A TW100101349 A TW 100101349A TW 201218048 A TW201218048 A TW 201218048A
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Taiwan
Prior art keywords
touch
input device
image sensor
image
dimensional image
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TW100101349A
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Chinese (zh)
Inventor
Chih-Min Liu
Yi-Cheng Chou
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Himax Imagimg Inc
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Publication of TW201218048A publication Critical patent/TW201218048A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0428Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Image Input (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

A method for detecting a touch status of a surface of an input device, comprising: utilizing a first two-dimension (2D) image sensor disposed at a first location for capturing a first captured image of an object on the surface; and outputting a plurality of first positions of the object relative to the surface respectively by analyzing horizontal lines of the first captured image.

Description

201218048 六、發明說明: 【發明所屬之技術領域】 本發明係關於觸碰狀態之偵測,尤指一種用以偵測一輪入裝置之 一表面之一觸碰狀態的方法以及應用該方法之一輸入裝置。 【先前技術】 觸碰面板(touch panel)在多樣的消費者電子產品中有著廣泛的應 用,使用者僅需要運用手指或觸碰筆在觸碰面板螢幕移動,便可從 螢幕選擇影像或是字元,輸入資訊以及執行功能。 傳統觸碰面板可依據不同的感測方法來分成幾種不同的類型。舉 例來說,觸碰面板可以是一電阻式(reSistjVetype)觸碰面板或是一電 容式(capacitive type)觸碰面板。電阻式觸碰面板由兩個氧化銦錫 (indiUmtinoxide ’ IT〇)傳導薄膜相互堆疊而成,經由施加壓力來將 該兩個傳導薄膜電連接在一起,其控制器便可量測該面板上的電壓 差以計算出該觸碰輸入的座標。而電阻式觸碰面板之結構則是由兩 個分別沿著X軸方向以及γ軸方向電連接在一起之電極層(_疏 layer)以及在該兩個電極層之間的一絕緣層所構成,如此一來,便可 經由使用者的手指之靜電反應所產生的-電容差值減-電場來決 定一觸碰輸入。 近年來’已開始有將一光學感測器應用在觸碰面板的設計問世。 201218048 封對於大面積_碰面板來說,會較為合適且較為經濟。 在製作大__麵板時,猶是雜式或是電容式的觸碰面 板’「感測」材質(例如:氧化銦錫傳導薄膜)的消耗量亦會有等比例 的增力”然而’由於光學觸碰面板的結構中並沒有「感測」材質, 增加觸碰面板的尺寸料會導魏光學觸碰秘的製域本跟著等 比例上昇。部分習知的光學觸碰面板應用了—維(〇nedime_nai, 條碼讀取裝置或—些特別設計的線性光學感測器來作為觸碰偵 測点然而,上述的光學觸碰面板並無法感測觸碰的壓力或是筆劃 的強度itb外’上述的線性光學感測器外型會太薄以及過長而難以 分割和佈局,是故需要較高的製作成本。 【發明内容】 疋故,本發明的目的之一,在於提供一種方法來偵測一輸入裝置 之一表面之一觸碰狀態以及應用該方法的輸入裝置以解決上述的問 題。 依據本發明之—第—實施例’-種用以細卜輸人裝置之-表面 之一觸碰狀態的方法,包含有:應用設置於一第一位置之一第—二 維(two-dimension ’ 2D)影像感測器(sens〇r),擷取該表面上之一物件 之一第一擷取影像;以及分析該第一擷取影像之複數條水平線以分 別輸出該物件對應於該表面之複數個第一位置。 依據本發明之-第二實施例,一種用以偵測〆輸入裝置之一表面 201218048 之一觸碰狀態的方法,包含有:應用毁置於一第4 像感測器’來擷取該表面上之一物件之一筮 一維衫 彌取影像,盆中兮机201218048 VI. Description of the Invention: [Technical Field] The present invention relates to the detection of a touch state, and more particularly to a method for detecting a touch state of a surface of a wheeled device and applying one of the methods Input device. [Prior Art] The touch panel has a wide range of applications in a variety of consumer electronic products. Users only need to use a finger or a touch pen to move the screen on the touch panel to select an image or a word from the screen. Meta, input information and execution functions. Traditional touch panels can be divided into several different types depending on different sensing methods. For example, the touch panel can be a resistive (reSistjVetype) touch panel or a capacitive type touch panel. The resistive touch panel is formed by stacking two indium-silicon oxide (ITO) conductive films, and the two conductive films are electrically connected together by applying pressure, and the controller can measure the panel. The voltage difference is used to calculate the coordinates of the touch input. The structure of the resistive touch panel is composed of two electrode layers electrically connected together along the X-axis direction and the γ-axis direction, and an insulating layer between the two electrode layers. In this way, a touch input can be determined by the capacitance-decrease-electric field generated by the electrostatic reaction of the user's finger. In recent years, the design of applying an optical sensor to a touch panel has begun. 201218048 Seals are more suitable and economical for large-area _ touch panels. In the production of large __ panels, the consumption of the "sensing" material (for example, indium tin oxide conductive film) of the hybrid or capacitive touch panel will also have a proportional increase in power. Since there is no "sensing" material in the structure of the optical touch panel, increasing the size of the touch panel will lead to a proportional increase in the area of the optical touch. Some conventional optical touch panels use a 维nedime_nai, bar code reading device or some specially designed linear optical sensor as a touch detection point. However, the above optical touch panel cannot be sensed. The pressure of the touch or the intensity of the stroke is outside. The above-mentioned linear optical sensor is too thin and too long to be divided and laid out, which requires a high production cost. [Summary of the Invention] One of the objects of the present invention is to provide a method for detecting a touch state of one of the surfaces of an input device and an input device applying the method to solve the above problem. According to the present invention - the first embodiment - A method for touching a state of a surface of a device, comprising: applying a two-dimension ' 2D image sensor (sens〇r) disposed in a first position; Extracting a first captured image of one of the objects on the surface; and analyzing a plurality of horizontal lines of the first captured image to respectively output a plurality of first positions of the object corresponding to the surface. two A method for detecting a touch state of a surface 201218048 of one of the input devices includes: applying an image to a fourth image sensor to capture one of the objects on the surface. One-dimensional shirt to capture the image, the pot machine

件具有一第一部分以及一第二部分,而該第_ '、 aA 吻弟一部分具有與該 分不同之光學特徵;以及依據該第一拍員取影像中7第 Λ 。 直位置來輸出一觸碰壓力。 F刀之垂 依據本發明之一第三實施例,揭露了一插认^ 第 輸入裳置,包含有 維影像感測器設置 二維影像感測器以及一觸碰控制器。該第__ 巧 於一表面上之一第一位置,用以擷取該表面 取影像。該觸碰控制器耦接於該第—二唯 ,f—擷 第-操取影像之複數條水平線以分別輪 數個第一位置。 ^^、。豕表面之後 依據本發明之1四實施例,揭露―種輪人裝置,包 件、-二維影像感測器以及—觸碰控制器。該物件 、 =第;:其中該第二部分具有與該第-部分不同之光二 铽'亥―、准衫像感測器設置於一表面之— 面上之該物件之-第,影像。該觸碰控制::二^ Π:分析該第一齡影像中該第-部分之-垂直位置: 【實施方式】 了某些詞彙來指稱特 在5兄明書錢續的申料娜圍當中使用 201218048 定的元件。所屬領域中具有通常知識者應可理解,硬體製造商可能 會用不同的名詞來稱呼同樣的元件。本說明書及後續的申請專利^ 圍並不以名稱的差異來作輕分元件的方式,㈣以树在功能上 的差異來作為區分的物。在通篇說明書及後續的請求項當中^提 及的「包含」係為-開放式的用語,故應解釋成「包含但不限定於」。 另外’「_」—詞在此係包含任何直接及間接的電氣連接手段。因 此,若文中描述-第-裝接於一第二裝置,則代表該第一農置 可直接電氣連接於該第二裝置,或透過其他裝置或連接手段間接地 電氣連接至該第二裝置。 晴參照第1圖’第1圖依據本發明之一實施例繪示了—輸入裝置 100的簡圖。輸入裝置1〇〇包含有(但不侷限於)一二維 、 (two-dimension,2D)影像感測器(sensor)11〇,一圓柱型㈣丨她㈣) 凹透鏡(c〇ncave lens)i2〇以及一觸碰控制器13〇,其中—平板反射哭 (未繪示於圖中)’也京尤是一面鏡子,被相對應岐置於二維影-像感。 測器120的相對方向上。輸入裝置1〇〇係應用在一平板14〇(例如: 一顯示器(monitor)或是其他的平板)之上。二維影像感測器12〇用以 在平板140的一平面上擷取一場景來得到一第一擷取影像。圓柱型 凹透鏡120則設置於二維影像感測器11〇之前,用以擴大該第一場 景之一影像尺寸,以形成於二維影像感測器11〇之上。觸碰控制器 130耦接於二維影像感測器110’用以分析該第一擷取影像之至少一 部分,以偵測出該平板140之該平面的該觸碰狀態。請注意,在此 實施例中,輸入裝置100係為一光學觸碰裝置,圓柱型凹透鏡12〇 201218048 疋用來將該第-場景之該影像尺寸擴大並成像於二維影像感測器 110上之-絲裝置H上述範例僅用來說明本發明之精神, 而來限定本發明之關。剌其他具有擴大舰的光學裝置 之"又什亦落在本發明之範,之内。此外,圓柱型凹透鏡120僅為用 來將該第-場景之該影像尺寸擴大並成像於二維影像感測器110上 之-較佳貫關,在本發明其他的實關巾,亦可依據不同的設計 考量而選擇不加入圓柱型凹透鏡12〇。 在-貫施例中,二維影像感測器110包含有複數個感測排(s_r row)112_l〜112—m。觸;ε並控制器包含有一讀取電路132以及一分析 電路134。讀取電路132肖以逐一讀取二維影像感測器ιι〇之感測 排112—1〜112—m,並接著產生複數筆讀取資料R〇utl〜R〇utm。分析 電路134則會分析讀取電路132所讀出的讀取資料如此〜此迦, 以債測出平板140之該平面的該觸碰狀態。如同第J圖所示,一觸 碰筆150被置放於二維影像感測器11〇之該偵測區域中。圓柱型凹 透鏡120將觸碰筆150之一影像尺寸擴大並成像於二維影像感測器 110上。觸碰控制器13〇逐一讀取二維影像感測器11〇之感測排 112_1〜112_m並產生讀取資料Routl〜R〇utm。接著,觸碰控制器13〇 分析讀取資料Rcmtl〜Routm來偵測出觸碰筆15〇之該碰觸位置。在 此實施例中,二維影像感測!! u㈣齡(frame咖)為 per second),而其中m等於5〇,輸入裝置1〇〇之更新率可被視為15〇〇 fps。 201218048 在另一實施例中,讀取電路13〇將感測排丨i2_m分割為n 個感測組(sensor group) G1〜Gn。在其中的一個範例中,m等於50 而η等於10。也就是說’第一感測組⑴包含有感測排112JI、 112_11、112_2卜112—31、112—41 ;第二感測組G2包含有感測排 112_2 ' 112—12、112—22、112—32、112_42,以此類推(請注意,為 了簡明起見,圖中僅綠示了兩個感測組與G2)。然而,這個範例 的目的僅是用來說明本發明,並非用來限定本發明之範圍。也就是 說,m與η可為其他之任意正整數。讀取電路132逐一讀出感測組 G1〜G10,並接著產生複數筆讀取資料R〇uU,〜R〇utl〇,。分析電路 134則分析讀取電路132所讀出的讀取資料R〇utl,〜R〇utl〇 ’來僧測 出平板140之該平面的一觸碰壓力。 如第2圖所示’兩延展性(extensive)觸碰筆(亦即具有彈性之觸碰 筆)250、260被設置於二維影像感測器u〇的感測區域中。延展性觸 石亚筆250包含有一彈性元件252、一第一部分254以及一第二部分 256。第二部分用以接觸平板14〇之該表面,其中第二部分254係經 由彈性元件252連結於第一部分256,且第二部分254可自由移動, 而第二部分256具有與第一部分254不同之光學特徵。在此範例中, 彈性元件252為一彈簧,第一部分254是由一不透明材質所構成’ 而第—部分256則是由一透明材質所構成。由於延展性觸碰筆26〇 之結構和材質均與延展性觸碰筆25(^目同,相關說明在此便不再賢 述。 、 201218048 圓柱型凹透鏡120將延展性觸碰筆250、260之一影像尺寸擴大, 以成像於二維影像感測器110之上。觸碰控制器13〇逐—讀取感測 組G1〜G10 ’以分別產生讀取資料R〇utl,〜R〇utl〇,。接著,觸碰控 制器130依據讀取資料R0utl,〜R〇utl0, ’分析成像在二維影像感測 益110之一光拒斥(light rej ection)區域(亦即一暗區域)以及—光接收 (light acceptance)區域(亦即一亮區域)’以偵測延展性觸碰筆25〇、 之觸碰壓力。如第2圖所示,延展性觸碰筆260之觸碰壓力高於延 φ 展性觸碰筆25〇之觸碰壓力,是故延展性觸碰筆260成形在二維影 像感測器110上的暗區域會較延展性觸碰筆250成形在二維影像烕 測器110上的暗區域來得長,而二維影像感測器11〇上的暗區域可 由二維影像感測器11〇的感測組G1〜G1〇來加以感測。在此實施例 中,二維影像感測器110的幀率亦為30驷而n等於1〇,是故輸入 裝置100之更新率可被視為300 。 請注意,在上述的範例之中,延展性觸碰筆250、260是由三個 •不同元件所組合而成,然而,本實施例僅用來說明本發明之精神, 這並非用來限定本發明之範圍。舉例來說,延展性觸碰筆可由—第 一部分以及一第二部分所組成,其中該第二部分係由一彈性材質所 構成,並連結於該第一部分,用來接觸平板140之該平面,而該第 一 为具有與遠弟一部分不同之光學特徵。同樣地,可經由分析該 延展性觸碰筆成像在一二維影像感測器之一光拒斥區域(亦即一暗 區域)以及一光接收區域(亦即一亮區域),來達到偵測該延展性觸碰 筆的觸碰壓力之目的。 201218048 請參照第3圖,第3圖為依據本發明之另一實施例所實現的一輸. 入裝置300之間圖。輸入裝置3〇〇包含有(但不偈限於卜第一二维 影像感測請、-第二二維影像感測器32〇、一第一圓柱型凹透鏡 330以及第圓柱型凹透鏡34〇、—觸碰控制器现以及一平板 3二其中::板反射器(未_圖中),例如:兩面鏡子,分別設 置於第-與第二二維影像感測器训與伽之相對方向的兩邊。第 一-維維影像感測器'31〇用以掏取平板一表面上之一第一場 景以得到-第-揭取影像。第一圓柱型凹透鏡33〇設置於第一二維# 維影像感測器310之前,用以擴大該第一場景之一影像尺寸,以形 成於第-二維影像感測器31〇之上。第二二維維影像感測器咖用 以擷取平板360的該表面(與第一二維影像感測器31〇所在之表面相 :)上之-第二場景以得到—第二擷取影像。第二圓柱型凹透鏡· :置於第轉影像感測If 32G之前,用以擴大該第二場景之一 影像尺寸,以形成於第二二維影像感測器32〇之上。控制器35〇耦 接^第一二維影像感測器310與第二二維影像感測器320,用_ · =分析該第’取影像之至少一部分與該第二梅取影像之至少一部 刀’以偵測出該平板36〇之該平面的該觸碰狀態。請注意,在此實 施例中’輪入裝置3〇〇為一光學觸遂裝置’第—與第二圓柱型凹透 鏡330與34〇為用以分別將該第一場景與第二場景之影像尺寸擴大 並成像於第一二維影像感測器31〇與第二二維影像感測养3卜、 子衣罝,然而,上述範例僅用來說明本發明,並非用來限定本發 明之範圍。助其他具錢錢㈣光學錢之設計祕在本發;· 10 201218048 •之範鳴之内。此外,對其他未採用第-與第二圓柱型凹透鏡330盘 340或疋僅減其中之-的設計來說,假若可得到大致相同的处 果’其設計仍然會落入本發明之範嘴之内。在閱讀過上述所揭露的 貫施例之後’熟習此項技藝者應可輕易了解輸人裝置划之運作, 為簡明起見,相關敘述在此便不再贅述。 上述實關制來說日林發明在實作上的設計,並制來限制本 發明之範圍。熟習此項技藝者應可輕易得知’在不背離本發明之精 神的前提之下’對該輸人裝置進行各種不同修改之設計,域於^ 發明之範疇之内。 第4圖為依據本發明之一實施例用以偵測一輸入裝置之一表面 的一觸碰狀態之-流程圖。請注意,倘若大體上可達到相同的結果, 並不需要—定照第4圖所示之流程中的步驟順序來進行,且第*圖 所示之步驟不一定要連續進行,亦即,其他步驟亦可***其中;古羊 φ 細操作步驟包含有(但不限定於): ° 步驟402 :應用一二維影像感測器來擷取該輸入裝置之該表面上之 -場景,以得到-擷取影像,其中該二維影像感測器包 含有複數個感測排。 步驟404:應用一延展性裝置來接觸該輸入裝置之該平面,其中該 延展性裝置係位在該場景之中。 步驟406 ·擴大該場景之一影像尺寸’以形成於該二維影像感測器 之上。 11 201218048 以偵測出該輸入裝置之 步驟糊:分析該揭取影像之至少一部分, 該平面的一觸碰塵力。 生複’棘油㈣碰分為魏域顺以接著產 “料。接者分析該些讀取資料來偵測該輪入裝置之該 平面的該綱狀態。在_過前侧於第2騎示的輸人裝置⑽/ 之說明之後’翻此項技藝者射㈣得知第4圖中各個步驟之相 關運作,為簡明起見,在此便不再贅述。 第5圖為依據本發明之另一實施例用以偵測一輸入裂置之一表 面的-觸⑱狀態之流程圖。請注意,倘若Α體上可達到相同的結果, 並不需要-定照第5圖所示之流程中的步驟順序來進行,且第$圖 所示之步驟不一定要連續進行,亦即,其他步驟亦可***其中·二 細操作步驟包含有(但不限定於): 步驟502 :應用一第一二維影像感測器來擷取該輸入裝置之唁夺面 上之一場景,以得到一第一擷取影像,其中該第一一維 影像感測器包含有複數個感測排。 ' ^ 步驟504 :應用一第二二維影像感測器來擷取該輪入裝置之唁表面 上之一場景,以得到一第二擷取影像,其中該第__維 影像感測器包含有複數個感測排。 ’ 步驟506 :擴大該場景之一影像尺寸’以形成於該第__ 禾一維影像感 測器與該第二二維影像感測器之上。 步驟508 :分析該第一擷取影像與該第二擷取影像之至少—部八 . 12 201218048 以偵測出該輸入裝置之該平面的一觸碰位置。 在步驟508之中’該第一二維影像感測器之該複數個感測排以及 5亥弟·--維影像感測器之该袓數個感測排被逐一讀取出來,產生複 數筆讀取資枓。接著分析該些讀取資料來偵測該輸入裝置之該平面 的該觸碰狀態。在閱讀過前述關於第3圖所示的輸入裴置3〇〇之說 明之後’熟習此項技藝者應可輕易得知第5圖中各個步驟之相關運 作,為簡明起見,在此便不再贅述。 總結來說’本發明的各個實麵提供了—錄人裝置以及方法來 4貞測該輸入裝置之一 器以及一光皋奘詈央 平面之-觸碰狀態。經由應用—二維影像僧測 益以及-光學裝置來將該場景—影像尺寸擴大之,以形成於該二維 影像感之上,該輸人裝置之該觸碰狀態可經由該二維影㈣測The piece has a first portion and a second portion, and the portion of the first _ ', aA kisser has an optical characteristic different from the one; and the seventh Λ in the image is taken according to the first tempo. Straight position to output a touch pressure. F-Cutter Dangling According to a third embodiment of the present invention, a plug-in input device is disclosed, including a two-dimensional image sensor and a touch controller. The first __ is in a first position on a surface for capturing the surface to take an image. The touch controller is coupled to the plurality of horizontal lines of the first to second, f-撷 first to fetch images to respectively record the first positions. ^^,. After the surface of the crucible In accordance with a four embodiment of the present invention, a seed wheel device, a package, a two-dimensional image sensor, and a touch controller are disclosed. The object, = the first: wherein the second portion has a different light than the first portion, and the image of the object is disposed on a surface of the surface. The touch control::2^ Π: analyzing the vertical position of the first part in the first-age image: [Embodiment] Some words are used to refer to the application of the 5 brothers in the book Use the components specified in 201218048. Those of ordinary skill in the art should understand that a hardware manufacturer may refer to the same component by a different noun. This specification and subsequent patent applications do not use the difference in name as the means of light component, and (4) the difference in function of the tree as a distinction. The "include" mentioned in the entire specification and subsequent claims is an open-ended term and should be interpreted as "including but not limited to". In addition, the word "_" means any direct and indirect electrical connection. Thus, if described herein - to be attached to a second device, it is meant that the first agricultural device can be directly electrically connected to the second device or indirectly electrically connected to the second device through other devices or connection means. 1 is a schematic view of an input device 100 in accordance with an embodiment of the present invention. The input device 1〇〇 includes, but is not limited to, a two-dimensional (two-dimension, 2D) image sensor 11〇, a cylindrical type (four) 丨 her (four)) concave lens (c〇ncave lens) i2 〇 and a touch controller 13〇, where – the flat plate reflects and cries (not shown in the figure) 'Jingjing is especially a mirror, which is placed in a two-dimensional shadow-image sense. The opposite direction of the detector 120. The input device 1 is applied to a flat panel 14 (for example: a monitor or other flat panel). The two-dimensional image sensor 12 is configured to capture a scene on a plane of the flat panel 140 to obtain a first captured image. The cylindrical concave lens 120 is disposed in front of the two-dimensional image sensor 11A for expanding an image size of the first scene to be formed on the two-dimensional image sensor 11A. The touch controller 130 is coupled to the two-dimensional image sensor 110' for analyzing at least a portion of the first captured image to detect the touch state of the plane of the flat panel 140. Please note that in this embodiment, the input device 100 is an optical touch device, and the cylindrical concave lens 12〇201218048 is used to enlarge and image the image size of the first scene onto the two-dimensional image sensor 110. The present invention is only intended to illustrate the spirit of the invention and to define the invention. & Other optical devices with an extended ship are also within the scope of the present invention. In addition, the cylindrical concave lens 120 is only used to enlarge and image the image size of the first scene onto the two-dimensional image sensor 110. In other embodiments of the present invention, Different design considerations were chosen not to add a cylindrical concave lens 12〇. In the embodiment, the two-dimensional image sensor 110 includes a plurality of sensing rows (s_r row) 112_1 to 112-m. The ε and controller includes a read circuit 132 and an analysis circuit 134. The reading circuit 132 reads the sensing rows 112-1 to 112-m of the two-dimensional image sensor one by one, and then generates a plurality of reading data R〇utl~R〇utm. The analysis circuit 134 analyzes the read data read by the read circuit 132 so that the touch state of the plane of the flat panel 140 is measured by the debt. As shown in Fig. J, a touch pen 150 is placed in the detection area of the two-dimensional image sensor 11A. The cylindrical concave lens 120 enlarges and images one of the image sizes of the touch pen 150 onto the two-dimensional image sensor 110. The touch controller 13 reads the sensing rows 112_1 to 112_m of the two-dimensional image sensor 11A one by one and generates read data Rout1 RRutm. Next, the touch controller 13 〇 analyzes the read data Rcmtl R Routm to detect the touch position of the touch pen 15 . In this embodiment, two-dimensional image sensing! ! u (four) age (frame coffee) is per second), and where m is equal to 5 〇, the update rate of the input device 1 可 can be regarded as 15 〇〇 fps. 201218048 In another embodiment, the reading circuit 13A divides the sensing drain i2_m into n sensor groups G1 GGn. In one of the examples, m is equal to 50 and η is equal to 10. That is to say, the first sensing group (1) includes the sensing rows 112JI, 112_11, 112_2, 112-31, 112-41; the second sensing group G2 includes the sensing rows 112_2' 112-12, 112-22, 112-32, 112_42, and so on (note that for the sake of simplicity, only two sensing groups and G2 are shown in the figure). However, the examples are intended to illustrate the invention and are not intended to limit the scope of the invention. That is, m and η can be any other positive integer. The reading circuit 132 reads the sensing groups G1 to G10 one by one, and then generates a plurality of reading data R〇uU, ~R〇utl〇. The analyzing circuit 134 analyzes the read data R〇utl, R〇utl〇' read by the reading circuit 132 to detect a touch pressure of the plane of the flat plate 140. As shown in Fig. 2, the 'extensive touch pens (i.e., the touch pens having elasticity) 250, 260 are disposed in the sensing area of the two-dimensional image sensor u. The malleable lithograph 250 includes a resilient member 252, a first portion 254, and a second portion 256. The second portion is for contacting the surface of the flat plate 14〇, wherein the second portion 254 is coupled to the first portion 256 via the resilient member 252, and the second portion 254 is free to move, and the second portion 256 is different from the first portion 254 Optical characteristics. In this example, the resilient member 252 is a spring, the first portion 254 is formed of an opaque material and the first portion 256 is formed of a transparent material. Since the structure and material of the ductile touch pen 26〇 are the same as the ductile touch pen 25, the related description will not be described here. 201218048 The cylindrical concave lens 120 will extend the touch pen 250, 260 One of the image sizes is enlarged to be imaged on the two-dimensional image sensor 110. The touch controller 13 sequentially reads the sensing groups G1 to G10' to generate read data R〇utl, R〇utl, respectively. Then, the touch controller 130 analyzes the light rej ection area (that is, a dark area) of the two-dimensional image sensing benefit 110 according to the read data R0utl, 〜R〇utl0, ' And a light acceptance region (ie, a bright region) to detect the touch pressure of the ductile touch pen 25 。. As shown in FIG. 2, the touch pressure of the malleable touch pen 260 The touch pressure is higher than the touch pressure of the extended touch pen 25 ,, so that the dark region formed by the ductile touch pen 260 on the two-dimensional image sensor 110 is formed in the two-dimensional image than the malleable touch pen 250 The dark area on the detector 110 is long, and the dark area on the two-dimensional image sensor 11 can be sensed by the two-dimensional image. In the embodiment, the frame rate of the two-dimensional image sensor 110 is also 30 驷 and n is equal to 1 〇, so the update rate of the input device 100 can be It is considered to be 300. Note that in the above examples, the malleous touch pens 250, 260 are composed of three different components, however, this embodiment is only used to illustrate the spirit of the present invention. It is not intended to limit the scope of the invention. For example, the malleable touch pen may be composed of a first portion and a second portion, wherein the second portion is composed of an elastic material and is coupled to the first portion. Used to contact the plane of the flat plate 140, and the first one has an optical feature different from that of the remote part. Similarly, the optical repellent can be imaged by analyzing the extensible touch pen in one of the two-dimensional image sensors. The area (that is, a dark area) and a light receiving area (ie, a bright area) are used for detecting the touch pressure of the ductile touch pen. 201218048 Please refer to FIG. 3, and FIG. 3 is based on Another embodiment of the present invention achieves a loss. The input device 3 includes (but is not limited to the first two-dimensional image sensing, the second two-dimensional image sensor 32, a first cylindrical concave lens 330, and the first Cylindrical concave lens 34 〇, - touch controller and a flat plate 3 2:: plate reflector (not _ in the figure), for example: two mirrors, respectively set in the first and second two-dimensional image sensor training The two sides of the opposite direction of the gamma. The first-dimensional image sensor '31' is used to capture one of the first scenes on one surface of the flat plate to obtain a -first-extracted image. The first cylindrical concave lens 33〇 is set Before the first two-dimensional image sensor 310, the image size of one of the first scenes is expanded to be formed on the second-dimensional image sensor 31A. The second two-dimensional image sensor is used to capture the surface of the flat panel 360 (the surface of the first two-dimensional image sensor 31:): the second scene is obtained - the second capture image. The second cylindrical concave lens is disposed before the first image sensing If 32G to enlarge the image size of the second scene to be formed on the second two-dimensional image sensor 32A. The controller 35 is coupled to the first two-dimensional image sensor 310 and the second two-dimensional image sensor 320, and analyzes at least one of the at least one portion of the first captured image and the second captured image by using _·= The knife 'to detect the touch state of the plane of the flat plate 36〇. Please note that in this embodiment, the 'wheeling device 3' is an optical contact device' and the second cylindrical concave lenses 330 and 34 are used to respectively image size of the first scene and the second scene. The invention is expanded and imaged on the first two-dimensional image sensor 31 and the second two-dimensional image sensor, but the above examples are only used to illustrate the invention and are not intended to limit the scope of the invention. Help other money (four) optical money design secret in this hair; · 10 201218048 • within the Fan Ming. In addition, for other designs that do not use the first and second cylindrical concave lens 330 discs 340 or 疋, only if the same result can be obtained, the design will still fall into the mouth of the present invention. Inside. After reading the above-mentioned examples, the skilled person should be able to easily understand the operation of the input device. For the sake of brevity, the relevant description will not be repeated here. In the above-mentioned actual system, the design of the Japanese forest is in practice and is intended to limit the scope of the invention. It will be readily apparent to those skilled in the art that the design of the various modifications of the input device can be made without departing from the spirit of the invention, and is within the scope of the invention. Figure 4 is a flow diagram of a touch state for detecting the surface of an input device in accordance with an embodiment of the present invention. Please note that if the same result can be achieved in general, it is not necessary to perform the sequence of steps in the process shown in Figure 4, and the steps shown in Figure * do not have to be continuous, that is, other The step may also be inserted therein; the ancient sheep φ fine operation step includes (but is not limited to): Step 402: Apply a two-dimensional image sensor to capture the scene on the surface of the input device to obtain - The image is captured, wherein the two-dimensional image sensor includes a plurality of sensing rows. Step 404: Apply a malleable device to contact the plane of the input device, wherein the malleable device is in the scene. Step 406: Expand an image size of the scene to form on the two-dimensional image sensor. 11 201218048 to detect the step of the input device: analyzing at least a portion of the image to be extracted, a touch of dust on the plane. The resurrection 'thorn oil (four) is divided into Wei domain and then produces the material. The receiver analyzes the reading data to detect the state of the plane of the wheeling device. After the description of the input device (10)/, the person skilled in the art (four) learns the related operations of the steps in FIG. 4, and for the sake of brevity, it will not be repeated here. FIG. 5 is a view of the present invention. Another embodiment is a flow chart for detecting the state of the -touch 18 of a surface of an input split. Please note that if the same result can be achieved on the body, it is not necessary to - process the process shown in Figure 5. The steps in the sequence are performed, and the steps shown in FIG. 0 do not have to be performed continuously, that is, other steps may be inserted therein. The second detailed operation steps include (but are not limited to): Step 502: Applying a first A two-dimensional image sensor captures a scene on the capture surface of the input device to obtain a first captured image, wherein the first one-dimensional image sensor includes a plurality of sensing rows. ^ Step 504: Apply a second two-dimensional image sensor to capture the surface of the wheeling device a scene to obtain a second captured image, wherein the __dimensional image sensor includes a plurality of sensing rows. 'Step 506: Expand one of the scene image sizes' to form the first __ Step 508: analyzing at least a portion of the first captured image and the second captured image. 12 201218048 to detect the input. a touch position of the plane of the device. In step 508, the plurality of sensing rows of the first two-dimensional image sensor and the plurality of senses of the five-dimensional image sensor The rows are read one by one to generate a plurality of readings. The readings are then analyzed to detect the touch state of the plane of the input device. The above input regarding the input shown in FIG. 3 has been read. After the description of the device, the person familiar with the art should be able to easily understand the relevant operations of the various steps in Figure 5. For the sake of brevity, it will not be repeated here. The surface provides a recording device and a method to measure the input device. And a touch-state state of the light-emitting plane. The scene-image size is enlarged by an application-two-dimensional image measurement and an optical device to form on the two-dimensional image sense, the input The touch state of the human device can be measured via the two-dimensional shadow (four)

以上所述僅為本發明之較佳實施例, 所做之均等變化與修#,皆應屬本發明之涵蓋範圍 凡依本發明申請專利範圍 【圖式簡單說明】 13 201218048 第1圖依據本發明之一實施例繪示了一輸入裝置的簡圖。 第2圖依據本發明之另一實施例繪示了一輸入裝置的簡圖。 第3圖依據本發明之另一實施例繪示了一輸入裝置的簡圖。 第4圖為依據本發明之一實施例用以偵測一輸入裝置之一表面的一 觸碰狀態之一流程圖。 第5圖為依據本發明之另一實施例用以偵測一輸入裝置之一表面的 一觸碰狀態之一流程圖。 【主要元件符號說明】 110 二維影像感測器 112—1 〜112_m 感測排 120 圓柱型凹透鏡 130 觸碰控制器 132 讀取電路 134 分析電路 140 平板 150 觸碰筆 250 、 260 延展性觸碰筆 252 > 262 彈性元件 254 > 264 第一部分 256 、 266 第二部分 310 第一二維影像感測器 320 第二二維影像感測器 14 201218048 330 340 350 第一圓柱型凹透鏡 第二圓柱型凹透鏡 觸碰控制器 360 平板 G1、G2 感測組The above description is only the preferred embodiment of the present invention, and the equivalent changes and repairs are all included in the scope of the present invention. The scope of the patent application according to the present invention [simple description of the drawings] 13 201218048 One embodiment of the invention depicts a simplified diagram of an input device. Figure 2 is a block diagram showing an input device in accordance with another embodiment of the present invention. Figure 3 is a block diagram showing an input device in accordance with another embodiment of the present invention. Figure 4 is a flow diagram of a touch state for detecting a surface of an input device in accordance with an embodiment of the present invention. Figure 5 is a flow diagram of a touch state for detecting a surface of an input device in accordance with another embodiment of the present invention. [Main component symbol description] 110 2D image sensor 112-1~112_m Sensing row 120 Cylindrical concave lens 130 Touch controller 132 Reading circuit 134 Analysis circuit 140 Plate 150 Touch pen 250, 260 Extensional touch Pen 252 > 262 Elastic Element 254 > 264 Part 1 256, 266 Second Part 310 First Two Dimensional Image Sensor 320 Second Two Dimensional Image Sensor 14 201218048 330 340 350 First Cylindrical Concave Lens Second Cylinder Type concave lens touch controller 360 plate G1, G2 sensing group

Routl〜Routm、“Routl〜Routm 讀取資料 S402〜S408、S502〜S508 步驟Routl~Routm, "Routl~Routm read data S402~S408, S502~S508 steps

1515

Claims (1)

201218048 七、申請專利範圍: 1. 一種用以偵測一輸入裝置之一表面之一觸碰狀態的方法,包含 有: 應用設置於一第一位置之一第一二維(two-dimension,2D)影像感 測器(sensor),擷取該表面上之一物件之一第一擷取影像;以 及 分析該第一擷取影像之複數條水平線以分別輸出該物件對應於 該表面之複數個第一位置。 2·如申請專利範圍第1項之方法,另包含有: 調整-觸碰區域,其中該觸碰區域係形成於該第一二維影像感測 器上。 3. 如申請專利範圍第2項之方法,其中該該觸碰區域係應用—圓柱 型(cylindrical)凹透鏡(concave㈣來加以調整。 參 4. 利範圍第1項之方法’其中該第-二維影像感測器包含 複崎每一感 之一水平線,而分別輸出該物件 ㊉师衫像 的步驟包含有: 憶於该表面之複數個第-位置 逐-讀取該第-二維影像感 取資料;以及 之5亥些感測排以產生複數筆讀 分析每狀至少—讀取資細細職狀齡置。 16 201218048 5.如申請專利範圍第1項之方法,另包含有: 應用一第二二維影像感測器來擷取一第二擷取影像,其中該係第 一二維影像感測器係設置於該表面上不同於該第一位置之一 弟一位置;以及 分析該第二擷取影像之複數條水平線以分別輸出該物件對應於 該表面之複數個第二位置。 6·如申請專利範圍第5項之方法,其中該些第一位置中之一第一位 置與該些第二位置中相對應之一第二位置係形成該物件之一座 標。 7.如申請專利範圍第1項之方法’其中該物件具有一第一部分以及 第—部分,並可由分析該弟一操取衫像之該弟'部分來得到該 表面上之一觸碰壓力,其中該第二部分具有與該第一部分不同之 光學特徵。 8·—種用以偵測一輸入裝置之一表面之一觸碰狀態的方法,包含 有: 應用設置於一第一位置之一二維(tw〇-dimension,2D)影像感測器 (sensor),來擷取該表面上之一物件之一第一擷取影像,其中 該物件具有一第一部分以及一弟一部分,而3亥弟一部分具有 與該第一部分不同之光學特徵,以及 17 201218048 依據該第-擷取影像巾該第 壓力。 。垂直位置來輪出-觸碰 9·如申請專利範圍第8項之方法,复上 件,該第二部分係經由該彈性元件連結含有-彈性元 部分可自由移動。 。;^第一部分,且該第二 10·如申請專利第8項之方法,其中 所構成,並連結於該第—部分。/ 一°卩分係由—彈性材質 11.如申請專利範圍第10項之方法, 之複數條斜妙分_岭師對胁該= 位置 G含有分析該第—擷取影像 之複數個第一 12. —種輸入裝置,包含有: 第—維(two-diniension,2D) 表面上之一第一位置,用以擷取該表面上 〜像感測器(sensor),設置於— 之一物件之一第一 擷取影像;以及 觸碰控制器,耦接於該第一二維旦, ,〜像_ H,用以分析該第一 擷取影像之複數條水平線以相輪出該物件對 複數個第一位置 -應於該表面之 另包含有: 13·如申請專利範圍第12項之輸入裝置, 18 201218048 觸碰 一光學透鏡,設置於該第一二維影像感測器前,用以調赞 區域,其中該觸碰區域係形成於該第一二維影像感别器上 14.如申請專利範圍第13項之輸入裝置’其中該光學透鏡係為’圓 柱型凹透鏡(concave lens)。 15.如申請專利範圍第I2項之輸入裝置,其中該第一二維影像感測 裔包含有複數個感測排(sensor row) ’每一感測排對應於該第一擷 取影像之一水平線,而該觸碰控制器包含有: -頌取電路,肋逐—讀取該第—二維影像感測器之該些感測排 以產生複數筆讀取資料;以及 —分析電路’肋分析賴取桃所讀取之至少—讀取資料以輸 出該物件之該位置。 16·^申請專利範圍第u項之輸入裝置,另包含有: - ^維影像_器,設置於該表面上不同於該第—位置之一 -立置,域接於該觸碰控制器,用以掏取—第二娜影 其中該觸雜制器分_第 輪出該物件軸_表狀魏_像之魏條水平線以分別 17·如申請專概圍第丨 第-位置盘該此笛- 其中該些第一位置中之一 位置巾相對應之—第二位置係形成該物件 19 201218048 之一座標。 18. 如申請專利範圍第12項之輸入裝置’其中該物件具有一第一部 刀以及一第二部分,並可由分析該第一擷取影像之該第一部分來 得到該表面上之—觸碰壓力’其中該第二部分具有與該第一部分 不同之光學特徵。 19. 一種輸入裝置,包含有: -物件’具有一第一部分以及—第二部分,其中該第二部分具有# 與該第一部分不同之光學特徵; —二維(two-dimension,2D)影像感測器(sens〇r),設置於一表面 之-第-位置’用以擷取該表面上之該物件之—第一操取影 像;以及 -觸碰控制器,減於該二維影像感·、,用以分析該第一操取 影像中該第-部分之-垂直位置來輸出一觸碰壓力。 机如申請專利範圍第Θ項之輸入褒置,其中該物件另包含有一彈鲁 性元件’該第二部分係經由該彈性元件連結於該第 第二部分可自由移動。 I如申請專利範圍第項之輸入裝置’其中該第二部分係由 性材質所構成,並連結於該第一部分。 20 201218048 22.如申請專利範圍第19項之輸入裝置,其中該觸碰控制器另分析 該第一擷取影像之複數條水平線以分別輸出該物件對應於該表 面之複數個第一位置。 八、圖式:201218048 VII. Patent Application Range: 1. A method for detecting a touch state of one surface of an input device, comprising: applying a first two-dimensional (2D) to a first position (2D) An image sensor that captures one of the first captured images of one of the objects on the surface; and analyzes a plurality of horizontal lines of the first captured image to respectively output a plurality of the objects corresponding to the surface a location. 2. The method of claim 1, further comprising: an adjustment-touch area, wherein the touch area is formed on the first two-dimensional image sensor. 3. The method of claim 2, wherein the touch region is adjusted by a cylindrical concave lens (concave). The method of claim 1. The image sensor includes one horizontal line of each sense of Fusaki, and the steps of respectively outputting the image of the object of the object include: recalling a plurality of first-positions of the surface to read the first-two-dimensional image The data; and the 5th sensing row to generate a plurality of pen reading analysis, at least - read the fine-level job. 16 201218048 5. The method of claim 1 of the patent scope, including: The second two-dimensional image sensor captures a second captured image, wherein the first two-dimensional image sensor is disposed on the surface different from the first position; and analyzing the And secondly extracting a plurality of horizontal lines of the image to respectively output a plurality of second positions corresponding to the surface of the object. 6. The method of claim 5, wherein the first position of the first positions is The second phase Corresponding to one of the second positions is a coordinate of the object. 7. The method of claim 1 wherein the object has a first portion and a portion, and the figure can be analyzed by the brother Partially to obtain one of the touch pressures on the surface, wherein the second portion has a different optical characteristic than the first portion. 8. A method for detecting a touch state of one of the surfaces of an input device The method includes: applying a two-dimensional (tw〇-dimension, 2D) image sensor disposed in a first position to capture a first captured image of one of the objects on the surface, wherein the The object has a first portion and a portion of the brother, and a portion of the 3H has a different optical characteristic from the first portion, and 17 201218048 according to the first-taken image towel the first pressure. Vertical position to turn-touch 9 - The method of claim 8, wherein the second part is connected via the elastic element to the elastic element and is freely movable. The first part, and the second part The method of item 8, wherein the composition is and is connected to the first part. / The one part is made of - elastic material 11. The method of claim 10 of the patent scope, the plurality of oblique points Threats = Location G contains a plurality of first 12-input input devices for analyzing the first-captured image, including: a first position on the two-diniension (2D) surface for capturing The surface sensor-sensor is disposed on one of the first objects of the object; and the touch controller is coupled to the first two-dimensional denier, and the image _H is used for A plurality of horizontal lines of the first captured image are analyzed to phase out the object to a plurality of first positions - the other surface of the surface is included: 13. If the input device of claim 12, 18 201218048 touches one An optical lens is disposed in front of the first two-dimensional image sensor for accommodating the area, wherein the touch area is formed on the first two-dimensional image sensor 14. As claimed in claim 13 Input device 'where the optical lens is a cylindrical concave lens (c Oncave lens). 15. The input device of claim 1, wherein the first two-dimensional image sensing person comprises a plurality of sensor rows, wherein each sensing row corresponds to one of the first captured images. a horizontal line, and the touch controller comprises: - a capture circuit, reading the sensing rows of the first-two-dimensional image sensor to generate a plurality of reading data; and - analyzing the circuit Analyze at least the data read by the peach to read the data to output the location of the object. 16·^ The input device of the patent application scope item u, further comprising: - a dimension image device, disposed on the surface different from the first position - the vertical position, the domain is connected to the touch controller, Used to capture - the second Na Ying, the touch of the device is divided into the first round of the object axis _ table Wei _ like the Wei horizontal line to 17 respectively, such as the application for the general section of the first position - position plate The flute - wherein one of the first positions corresponds to the towel - the second position forms a mark of the object 19 201218048. 18. The input device of claim 12, wherein the object has a first knife and a second portion, and the first portion of the first captured image is analyzed to obtain a touch on the surface Pressure 'where the second portion has an optical characteristic that is different from the first portion. 19. An input device comprising: - an object 'having a first portion and a second portion, wherein the second portion has an optical characteristic different from the first portion; - a two-dimensional (2D) image sense a sensor (sens〇r) disposed at a surface-first position to capture the object on the surface - a first operation image; and - a touch controller to reduce the two-dimensional image ·, for analyzing the vertical position of the first portion of the first captured image to output a touch pressure. The input device of the invention of claim 2, wherein the object further comprises a resilient element, wherein the second portion is freely movable via the elastic member coupled to the second portion. I. The input device of claim 1 wherein the second portion is made of a material and is joined to the first portion. The input device of claim 19, wherein the touch controller further analyzes a plurality of horizontal lines of the first captured image to respectively output a plurality of first positions of the object corresponding to the surface. Eight, the pattern: 21twenty one
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